float a = 0 ;
float r= 0;
float b=0;
void setup(){
  size(200,200);
}

void draw(){
  background(r,a,b);
  //background(r);
}

void keyPressed(){
  r=keyCode;
  if (keyCode==UP){
    r=random(1000);
    a=random(1000);
    b=random(1000);    
    }
   /* if(keyCode==LEFT){
      value=1000;
    }*/
}
